Pitched Roof Skylight 400 x 1500 mm, Fixed, Frameless, Triple Glazed, 34kg, UV 0.9
Original price was: £ 516.00.£ 369.42Current price is: £ 369.42. incl. VAT
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8 in stock (can be backordered)
Regal Glass Group: A trusted manufacturer of premium roof windows ✓
Leakproof Design – Tested for Maximum Weather Resistance
Type: Fixed Frameless Pitched Roof Skylight
Internal Size: 400 x 1500 mm
External Size: 600 x 1700 mm
Glazing Type: Triple Glazed
Net Weight: 34kg
U Value: 0.9 W/m²K
G Value: 58%
Light transmittance : τv [%] 72
Sound reduction (EN 12758): 39dB
UV transmission : τuv [%] 0
Roof Pitch Range: 6° to 45°
Experience the excellence of Regal Glass Group’s roof windows, featuring these impressive technical characteristics.
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8 in stock (can be backordered)
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Pitched Roof Skylight 400 x 1500 mm, Fixed, Frameless, Triple Glazed, 34kg, UV 0.9
Original price was: £ 516.00.£ 314.01Current price is: £ 314.01. incl. VAT
Inclined Insulated Upstand for Flat Roof Skylight 400 x 1500 mm
Original price was: £ 225.00.£ 150.53Current price is: £ 150.53. incl. VATPremium Pitched Roof Skylights
Regal Glass Group introduces the Pitched Roof Skylight 400 x 1500 mm marvel that combines modern design with exceptional functionality. Our 20+ years of experience crafting the finest skylights is evident in this product, which seamlessly illuminates your home with natural light while making a stunning minimalist statement.
Why Choose Our Frameless Pitched Roof Windows
Unmatched Performance:
- Exceptional Thermal Efficiency: Advanced triple-glazed units with a 15mm warm edge spacer filled with Argon gas achieve an impressive U-value of 0.9 W/m²K. This translates to year-round comfort and significant energy bill reductions.
- Unobstructed Views: The frameless design maximizes natural light penetration, offering breathtaking panoramic vistas and complementing your pitched roof’s architecture with a sleek, minimalist aesthetic.
- Effortless Maintenance: Enjoy spotless glass with our self-cleaning technology, activated by sunlight for minimal upkeep.
Additional Benefits:
- Versatile Installation: Suitable for roof pitches between 6° and 45°, making it a great fit for many homes.
- Peaceful Ambiance: Provides effective soundproofing for a quieter indoor environment.
- Sun Safety: Offers protection against harmful UV rays, safeguarding your interiors.
- Safety First: Constructed with safety-toughened glass for ultimate peace of mind.
- Regulation Compliant: Meets all British Standards & Building Regulations and carries the CE safety marking.
Built to Last – Backed by a 20-year warranty, our skylights are a testament to superior durability and performance.
Essential Skylight Accessories
Enhance your pitched roof skylight experience with these essential add-ons for a seamless installation and optimal performance:
- Skylight Blinds for Pitched Roof Window 400 x 1500 mm: Maintain complete control over light and privacy with blinds designed specifically for your skylight.
- Installation kit for 1 x Pitched Roof Skylight 400x1500mm (for a slate roof) or Installation kit for 1 x Pitched Roof Skylight 400x1500mm (for a tiled roof): Choose the appropriate installation kit for your roof type (slate or tile) for a secure and stress-free roof window installation process.
- Foam Rope – Structural Glazing Tape – 9mm Thick (7.5m Rolls): This double-duty tape provides both effective sealing and structural support during installation.
- Weatherproofing Sealant (Silicon) – DOWSIL™ 791, 310ml: Ensures a watertight seal around your skylight for lasting peace of mind.
- Lead Flashing Smooth 45cm x 5m Roll Grey – Easy-Trim and Lead Flashing Textured 45cm x 5m Roll Grey – Easy-Trim: Our BBA-certified lead replacement offers additional versatility for pitched roof applications.
- Self-Cleaning Liquid Smart Glass Bottle 15ml: Maintain the self-cleaning properties of your skylight with this convenient refill solution.
Our Pitched Roof Skylights are composed of three distinct glass panes, each contributing to the unit’s durability and thermal efficiency:
- Top Pane: 6 mm Planibel Clearlite / Thermally toughened glass BS EN 12150
- Middle Pane: 6 mm iplus Thermally toughened glass with Low-E coating EN 12150
- Bottom Pane: Stratobel Clearlite 44.2 / Laminated glass EN 14449
Choose Regal Glass Skylight Windows
We offer an extensive range of standard sizes, including the popular 1500 x 400 mm skylight (also known as 1.5 x 0.4 m roof light), as well as fully custom skylights to suit your specific needs.
Download our full product catalogue to explore our extensive Pitched Roof skylight range and find the perfect solution for your project.
Ready to discuss your skylight needs? Contact us today!
What are the top-rated Pitched roof rooflights 400 x 1500 mm
Regal Glass Group’s Pitched Roof Rooflights 400 x 1500 mm are top-rated for quality and durability in United Kingdom. Free delivery for London M25.
🗺️ 400 x 1500 mm Pitched Roof Lights Near Me
Looking for a 400 x 1500 mm pitched roof light near you? Also known as a 0.4 x 1.5 m rooflight, this slimline format is ideal for narrow loft corridors, en-suite pitched ceilings, or feature lighting in hard-to-reach areas. Regal Glass Group manufactures frameless pitched roof windows designed to deliver clean daylight in compact spaces—without sacrificing performance.
✅ Slimline Rooflight – For Light in Hard-to-Reach Spaces
✅ UKCA Certified – Built for Safety and Efficiency
✅ Custom Sizing Available for Unique Projects
✅ Fast, Nationwide Delivery
✅ 20-Year Structural Warranty
Compact yet powerful, this size is ideal for renovation and new build projects where light, discretion, and design precision all matter. Built to last. Delivered with care.
| Weight | 108 kg |
|---|---|
| Dimensions | 55 × 10 × 55 cm |
| Brand |
Regal Glass |
| Color |
Clear |
| Internal Size |
400 x 1500 mm |
| External Size |
600 x 1700 mm |
| Glazing Type | |
| Glass Tint | |
| Self-Cleaning: |
Yes |
| Roof Type |
Pitched Roof |
| Skylight Type |
Frameless |
| Top Glass Pane: |
6 mm Planibel Clearlite / Thermally toughened glass EN 12150 |
| Air Gap |
16 mm Argon 90% |
| Middle Glass Pane: |
6 mm iplus 1.1 pos.5 Thermally toughened glass with Low-E coating EN 12150 |
| Air Gap |
16 mm Argon 90% |
| Bottom Glass Pane: |
Stratobel Clearlite 44.2 / Laminated glass |
| Spacer Type |
15mm Black Warm Edge |
| U value |
0.9 [W/(m².K)] |
| Sound reduction - EN 12758 |
[dB] 39 (-2;-7) |
| Light transmittance: tv [%] |
72 |
| External light refection : ρv [%] |
17 |
| Internal light refection : ρvi [%] |
17 |
| Colour rendering index : Ra [%] |
97 |
| Solar energy transmittance : g [%] |
57 |
| Shading coefcient : SC |
0.66 |
| Selectivity |
1.26 |
| UV transmission : τuv [%] |
0 |
Delivery Times:
- Standard Size Flat & Pitched Skylights: Typically delivered within 3 to 6 working days.
- Custom Size Orders: Production and delivery to the UK take approximately 3 to 6 weeks. Delivery is free of charge.
- Roof Lanterns: Delivered within 10-14 working days from the date of order.
- Framed Skylights: Delivered within 10-14 working days from the date of order.
- Electric Opening Skylights: Delivered within 10-14 working days from the date of order.
- Walk-On Skylights: Delivered within 10-14 working days from the date of order.
- Skylight Blinds: Delivered within 10-14 working days from the date of order.
Delivery Hours:
- Monday to Friday, between 8 am and 5 pm.
Once your payment has been processed, we will contact you to arrange a convenient delivery time.
Placing an Order: To view delivery costs, please add your desired products to the cart and enter the shipping address.
Delivery Areas:
- Within London (M25): Our dedicated drivers ensure safe delivery. Please ensure that you or your builders are present to accept the delivery, as our drivers work alone and the vehicles are pre-loaded.
- Outside London (M25): We utilize an external shipping network. The courier will contact you to schedule a suitable delivery time.
- Extra Economy Shipping: Available for all areas except Northern Ireland and Scotland. In rare cases, delivery may be to a local depot if suitable vehicles are unavailable.
Important Notes:
- Many of our products are heavy, ranging from 10kg to 280kg. Depending on the size and weight, additional help may be required for unloading (2-6 people).
- We are not liable for any damage during unloading. It is the customer's responsibility to manage this process.
- If no one is present to receive the delivery, our driver will attempt to contact you via phone, text, or voicemail. If contact cannot be made, the product will be returned to our warehouse.
Why Choose Our Insulated OSB Upstands?
Before and After
See how a space is completely transformed with a Regal Glass skylight.
- Maximum daylight
- Modern minimalist design
- Superior insulation & UV protection
One change. Total transformation. Choose Regal Glass Group.
Our Roof Windows in Action
Photos from completed projects by our clients
Quick Shipping
Get it fast with our expedited shipping options.
Secure Payment
Shop safely with our secure online checkout.
Easy Returns
Hassle-free returns within 30 days.
20 Year Warranty
Enjoy peace of mind with our extensive warranty.
Frameless Skylights Glass Performance
Experience the perfect blend of natural light, energy efficiency, noise reduction, and UV protection with our precision-engineered glass.
PITCHED ROOFS
TILE & MEMBRANE COMPATIBLE
EASY & SECURE INSTALLATION
Will It Fit My Roof?
1. Pitched Roofs
Our skylights are suitable for pitched roofs with a pitch between 6° and 45° when installed with the correct upstand or flashing kit.
2. Tile & Membrane Compatible
Designed for all common UK roof types – from clay tiles and slate to EPDM, GRP, and bitumen flat roof membranes.
3. Easy & Secure Installation
Each skylight is engineered for watertight, airtight installation. Use our installation kits and add our pre-fabricated upstands for a perfect fit and finish.
Easy to replicate
Installation Guide
Dive into our user-friendly Installation Guide for a smooth skylight setup. Get the clarity you need, step-by-step.
Click below to explore the full guide.
Customer Reviews
3 reviews for Pitched Roof Skylight 400 x 1500 mm, Fixed, Frameless, Triple Glazed, 34kg, UV 0.9
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Flat Roof Skylight 600 x 1200 mm, Fixed, Frameless, Triple Glazed, 38.40kg, UV 0.9
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Yes. This unit is designed for pitched roofs between 6° and 45° and is compatible with both tile and slate. We also supply flat roof options separately.
Our triple-glazed models offer U-values as low as 0.9 W/m²K (whole unit), helping you meet Part L regulations and reduce heat loss.
Yes. All our skylights come with self-cleaning glass as standard to reduce dirt buildup.
Yes. We offer made-to-measure rooflights to fit your exact requirements. Contact us for a custom quote.
Yes, our skylights can be installed on both cold and warm roof types.
Yes. When installed with our official flashing kit and according to instructions, it is guaranteed to be watertight.
Absolutely. Each unit uses toughened outer and laminated inner glass that complies with UK safety standards (EN12150 / EN14449).
We offer a 20-year guarantee on the glazing unit.
Mitchell Jenkins –
As a contractor, I appreciate the quick and easy installation of Regal Glass skylights. It helps keep projects on schedule and clients happy.
Louis Hawkins –
I was skeptical about getting a pitched skylight for our kitchen in our Brighton villa, but the 400 x 1500 size fits beautifully, enhancing the whole room.
Reggie Ray –
The 400 x 1500 pitched rooflight added to our study in Nottingham is a innovation. The light and ambiance it adds are just what we needed.